Patent US4492001A successfully refreshed from Google Patents.
Patent US3568942A successfully refreshed from Google Patents.
US3568942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cartridge for endless tape having a notched edge
Assignee: Individual
•
Filing: 1969-01-13
•
Granted: 1971-03-09
•
Expires: 1989-01-13
Abstract
Abstract A cartridge for an endless tape having a notched edge comprises two spools mounted on parallel axes and provided with peripheral protuberances mating with said notches. A motor is provided for driving one spool in one direction at a predetermined speed and a second motor is connected for driving the other spool in the opposite direction at a different speed when the first motor is inoperative. Gear or belt means are provided to drive either spool from the other.
Inventors
- 👤 Serge Leon Louis Cailliot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:32
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; Y; Y10; Y10S; Y10S242/00; Y10S242/917; Y10S242/918
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
172 words
A magazine cartridge containing an endless tape having a notched edge, said cartridge comprising at least one pair of coils of said tape, the coils of each pair being wound in opposite directions and having a substantially equal number of turns, each coil being connected at its top to an adjacent coil by a section of said tape and at its bottom to an adjacent coil by another section of said tape, spool means carrying said coils and rotatably mounted within said cartridge, means constraining said spools to rotate synchronously in the same direction, means connected to one of said spools for rotating them in one direction at a predetermined speed for reproduction and means connected to the other of said spools for rotating them in the other direction at a greater speed, each spool being provided with peripheral projections spaced to engage the notches in the edge of said tape, and said tape being coiled with its notched edge adjacent said spool and its major surfaces transversely disposed with respect thereto.
Claim 2
Dependent Claim
172 words
A magazine cartridge containing an endless tape having a notched edge, said cartridge comprising at least one pair of coils of said tape, the coils of each pair being wound in opposite directions and having a substantially equal number of turns, each coil being connected at its top to an adjacent coil by a section of said tape and at its bottom to an adjacent coil by another section of said tape, spool means carrying said coils and rotatably mounted within said cartridge, means constraining said spools to rotate synchronously in the same direction, means connected to one of said spools for rotating them in one direction at a predetermined speed for reproduction and means connected to the other of said spools for rotating them in the other direction at a greater speed, each spool being provided with peripheral projections spaced to engage the notches in the edge of said tape, and said tape being coiled with its notched edge adjacent said spool and its major surfaces transversely disposed with respect thereto.
Claim 3
Dependent Claim
52 words
A cartridge as claimed in claim 1 in which said spools are mounted on shafts journaled in opposed walls of said cartridge, the ends of said shafts carrying rollers mounted to swivel in said journals to facilitate their alignment with the driven shafts of motors constituting said means for rotating said spools.
Claim 4
Dependent Claim
29 words
A cartridge as claimed in claim 1 characterized by the fact that it comprises at least two plates positioned to guide the sections of said tape connecting adjacent spools.
Claim 5
Dependent Claim
25 words
Cartridge as claimed in claim 1 comprising means for indicating the position of the tape, said indicating means being connected to one of said spools.
Claim 6
Dependent Claim
23 words
Cartridge as claimed in claim 1 in which the projections on said spool and the notches in said tape are trapezoidal in section.
Claim 7
Dependent Claim
26 words
Cartridge as claimed in claim 1 comprising a cover the inner surface of which is provided with rollers positioned to engage the ends of said coils.
Claim 8
Dependent Claim
22 words
Cartridge as claimed in claim 1 comprising a cover the inner surface of which is ribbed adjacent the ends of said coils.
Claim 9
Dependent Claim
66 words
Cartridge as claimed in claim 1 in which said spools are mounted on shafts projecting at one end outside said cartridge, said projecting end being formed with a centering recess for receiving the tip of the driven shaft of a motor and carrying a cam positioned to be turned by a pin mounted to be driven by said motor in a circle about said driven shaft.
Claim 10
Dependent Claim
42 words
Cartridge as claimed in claim 1 in which the means constraining said spools to rotate synchronously comprise gear wheels which are coaxial with said spools, driven in synchronism, and drive said spools through shafts fixed to both said gear wheels and spools.
Claim 11
Dependent Claim
24 words
Cartridge as claimed in claim 9 in which said means constraining said spools to rotate synchronously comprises a gear train connecting said gear wheels.
Claim 12
Dependent Claim
24 words
Cartridge as claimed in claim 9 in which said means constraining said spools to rotate synchronously comprises a toothed belt connecting said gear wheels.
Claim 13
Dependent Claim
48 words
Cartridge as claimed in claim 1 comprising at least one plate provided with ribs on each side and positioned to separate the endmost turn of the coil to be read and press it against a magnetic head, said plate being provided with a felt pad opposite said head.
Claim 14
Dependent Claim
71 words
Cartridge as claimed in claim 12 comprising a cover made of two curved plates, one of which is provided with an opening for receiving a magnetic head mounted to swing about the other curved plate, said spools being mounted on shafts which are loosely journaled in at least one of said covers, and means for locating said head carRying cover in any of a plurality of positions relative to said spools.
Claim 15
Dependent Claim
87 words
A magazine cartridge for an endless tape having a notched edge, said cartridge comprising a plurality of spools mounted to rotate on parallel shafts, the peripheries of said spools being provided with protuberances spaced to engage the notches in said tape when said tape is wound on said spools with its notched edge innermost, means for driving said spools in synchronism in different directions at different speeds, and means for separating a portion of said tape from the remainder thereof and pressing it against a magnetic head.
Claim 16
Dependent Claim
87 words
A magazine cartridge for an endless tape having a notched edge, said cartridge comprising a plurality of spools mounted to rotate on parallel shafts, the peripheries of said spools being provided with protuberances spaced to engage the notches in said tape when said tape is wound on said spools with its notched edge innermost, means for driving said spools in synchronism in different directions at different speeds, and means for separating a portion of said tape from the remainder thereof and pressing it against a magnetic head.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-08 | 1974-09-07 | 1975-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-08 | 1978-09-07 | 1979-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-08 | 1982-09-07 | 1983-03-09 | $7700.00 | Window Closed / Lapsed |